What is the function of SDN southbound API protocols?

The correct answer is A. to enable the controller to make changes. In an SDN architecture, southbound APIs are used to communicate between the SDN controller and the switches and routers within the infrastructure. These APIs can be open or proprietary.Southbound APIs enable SDN controllers to dynamically make changes based on real-time demands a

Submitted by takeshi77· Mar 30, 2026Automation and Programmability

Question

Options

Ato enable the controller to make changes
Bto allow for the dynamic configuration of control plane applications
Cto enable the controller to use REST
Dto allow for the static configuration of control plane applications

How the community answered

(41 responses)

A
88% (36)
B
7% (3)
C
2% (1)
D
2% (1)

Explanation

In an SDN architecture, southbound APIs are used to communicate between the SDN controller and the switches and routers within the infrastructure. These APIs can be open or proprietary.Southbound APIs enable SDN controllers to dynamically make changes based on real-time demands and scalability needs. OpenFlow and Cisco OpFlex provide southbound API

Topics

#SDN architecture#Southbound API#Network programmability

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